Self-standing bag with foldable flange

ABSTRACT

The present invention provides a self-standing bag with foldable flanges. The bag includes a main body, available with two corresponding side walls and a top/bottom wall connected between the top/bottom of two side walls. There are foldable flanges arranged at the top of two side walls of the main bag body, and openings are formed between two corresponding sides of the foldable flanges. The self-standing bag is positioned more reliably for an improved ads effect.

CROSS-REFERENCE TO RELATED U.S. APPLICATIONS

Not applicable.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT

Not applicable.

REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC

Not applicable.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a self-standing bag, and more particularly to an innovative self-standing bag, which allows foldable flanges to be assembled at a top of two side walls of the main body.

2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98.

A self-standing bag is widely used to as refill packages for liquid products (e.g. laundry detergent, softener), or powder or granule products (e.g. detergent, feed).

A conventional self-standing bag is depicted in FIG. 1, wherein the bottom 03 of the self-standing bag 02 can be expanded physically into a bigger area, and the top 04 can be compressed in a flat pattern

However, there are shortcomings observed during actual applications.

First, as regards the stability of arrangement, the side wall 05 is tilted when the conventional self-standing bag 02 is expanded by some objects, so the bottom wall of the self-standing bag 02 will be stretched into an arced shape. In such a case, only two opposite corners of the bottom 03 of the self-standing bag 02 are stably supported, leading to instability of the conventional self-standing bag. Thus, it is not ideal for the sales in the shops and arrangement by the users.

Second, as regards the ads effect, the space available for advertisement is only limited to the side wall 05 of the self-standing bag 02, without mentioning the overlapped portion around the side wall 05, so the commercial effect of the self-standing bag is not suitable for marketing purposes.

Thus, to overcome the aforementioned problems of the prior art, it would be an advancement in the art to provide an improved structure that can significantly improve efficacy.

Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products.

BRIEF SUMMARY OF THE INVENTION

Based on the unique present invention, the self-standing bag allows foldable flanges to be assembled at a top of two side walls, and the top of these two side walls is separated by a top wall. So, when the self-standing bag is filled with some objects, the two side walls can be expanded into a tubular space, and then the bottom of these two side walls is supported in a flush state, enabling the self-standing bag to be positioned stably for the purpose of smooth sales and reliable arrangement.

Based on the unique present invention, foldable flanges are assembled at the top of two side walls. The print ads space of the self-standing bag can be further increased, thus providing a clearer and wider picture for improved graphical representation and marketing purpose.

Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 shows a perspective view of a typical structure.

FIG. 2 shows a perspective view of a preferred embodiment of the present invention.

FIG. 3 shows a sectional view of a preferred embodiment of the present invention.

FIG. 4 shows another schematic view of a preferred embodiment of the top wall of the present invention.

FIG. 5 shows a schematic view of the present invention that the foldable flanges are additionally provided with a handle hole.

FIG. 6 shows a perspective view of the status of the present invention, wherein the foldable flanges are folded into a transversely extension state.

FIG. 7 shows a cross-sectional view of the present invention, wherein the foldable flanges are folded downwards.

DETAILED DESCRIPTION OF THE INVENTION

FIGS. 2-3 depict preferred embodiments of a self-standing bag of the present invention with a foldable flange. The embodiments are provided for only explanatory objectives with respect to the patent claims.

The self-standing bag A comprises a main bag body 10, which is available with two corresponding side walls 11 and a bottom wall 12 connected between the bottom of two side walls 11 (shown in FIG. 3).

The bag A also comprises a top wall 20, which is connected between the top of two side walls 11 of the main bag body 10 in a transversely flanged pattern.

Two foldable flanges 30, 30B are extended from the top of two side walls 11 of the main bag body 10 to a proper area. Moreover, an opening 31 is formed between two corresponding sides of the foldable flanges 30, 30B.

The corners 32 of the foldable flanges 30, 30B are designed into rectangular or obtuse (e.g. beveling and rounding) patterns. FIG. 2 depicts the rounding pattern of the corners 32.

An object outlet 40 is placed centrally or laterally onto the top wall 20. Referring to FIGS. 2 and 3, the object outlet 40 is comprised of a protruding screwed pipe 41 and a blind nut 42. The blind nut 42 can be screwed onto the protruding screwed pipe 41 to seal the object outlet 40. Conversely, the object outlet 40 can be opened by loosening the blind nut 42.

Referring to FIG. 4, the foldable flanges 30, 30B can be additionally provided with a handle hole 50, allowing the user to lift and carry manually the self-standing bag.

Referring to FIG. 5, the object outlet 40 of the preferred embodiment is placed laterally onto the top wall 20B, and the top wall 20B is set into a downward inclined plane.

The core design of the self-standing bag A of the present invention lies in that, foldable flanges 30, 30B are extended from the top of two side walls 11 of the main bag body 10. As shown in FIG. 3, the top of two side walls 11 is separated by the top wall 20, rather than two conventional side walls' tops that are connected in a flat state, so these two side walls 11 of the present invention can be expanded into a tubular space, and then the bottom of these two side walls 11 is supported in a flush state, enabling the self-standing bag to be positioned stably. Furthermore, with the arrangement of the foldable flanges 30, 30B, the print ads space of the self-standing bag A can be increased, allowing for flexible and convenient arrangement of the letters, patterns and trademarks for marketing purpose.

Additionally, based on the design that an opening 31 is formed between two corresponding sides of the foldable flanges 30, 30B, these two foldable flanges 30, 30B are disconnected. After the users purchase the products packaged by the self-standing bag A, these two foldable flanges 30, 30B can be folded into a transversely extension state (in collaboration with FIG. 6), or folded downwards to be abutted externally against the side wall 11 (in collaboration with FIG. 7), so the object outlet 40 on the top wall 20 is exposed for ease-of-use. It is thus learnt that these two foldable flanges 30, 30B can improve the convenience for the benefit of the users. 

1. A self-standing bag, comprising: a main bag body, having two corresponding side walls and a bottom wall connected between a bottom of the two side walls; a top wall, connected between a top of the two side walls; two foldable flanges, extended from the top of the two side walls to a set area; and two openings, formed between two corresponding sides of the foldable flanges.
 2. The bag defined in claim 1, wherein the foldable flanges have corners in rectangular or obtuse patterns.
 3. The bag defined in claim 1, wherein the top wall has an object outlet placed centrally or laterally onto the top wall.
 4. The bag defined in claim 3, wherein said object outlet is comprised of a protruding screwed pipe and a blind nut.
 5. The bag defined in claim 1, wherein the foldable flanges are further comprised of a handle hole, allowing manually lifting and carrying.
 6. The bag defined in claim 1, wherein said foldable flanges extend vertically from the top of two side walls or extend transversely or folded downwards to be abutted externally against the side walls. 